| Value | Category | Cases | |
|---|---|---|---|
| 1 | Elevé | 87 | 
                                    
                                    8.2%
                                 | 
| 2 | Moyen supérieur | 291 | 
                                    
                                    27.3%
                                 | 
| 3 | Moyen inférieur | 536 | 
                                    
                                    50.2%
                                 | 
| 4 | Bas | 130 | 
                                    
                                    12.2%
                                 | 
| 9 | nr | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 23 | 
                                    
                                    2.2%
                                 |